/*
 * Copyright 2012 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package be.free.ts.support.web;

import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.TextArea;
import com.google.inject.Singleton;

import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.LogRecord;

/**
 * @author Christophe De Blende
 * @since 04/01/13
 */
@Singleton
public class ErrorDialog {
	interface Binder extends UiBinder<DialogBox, ErrorDialog> {
	}

	@UiField
	DialogBox errorDialog;

	@UiField
	TextArea errorMessage;

	public ErrorDialog() {
		GWT.<Binder>create(Binder.class).createAndBindUi(this);
	}

	public Handler getHandler() {
		Handler handler = new ErrorHandler();
		handler.setLevel(Level.FINE);
		return handler;
	}

	@UiHandler("dismiss")
	void onDismiss(ClickEvent event) {
		errorDialog.hide();
	}

	@UiHandler("reload")
	void onReload(ClickEvent event) {
		Window.Location.reload();
	}

	private class ErrorHandler extends Handler {

		@Override
		public void publish(LogRecord record) {
			if (isLoggable(record)) {
				errorMessage.setText(record.getMessage());
				errorDialog.center();
			}
		}

		@Override
		public void flush() {
		}

		@Override
		public void close() {
		}
	}
}